DocumentCode
2684846
Title
Analysis of class AB amplifier in supply modulation of EER transmission systems
Author
Melamed, Y. ; Spiegel, Solon J.
Author_Institution
Eng. Sch., Tel Aviv Univ., Tel Aviv, Israel
fYear
2011
fDate
7-9 Nov. 2011
Firstpage
1
Lastpage
4
Abstract
The analysis and design of class AB amplifier applied to supply modulation of EER transmission systems are presented. It is shown that the gain-bandwidth product and the output resistance of the class AB amplifier must be optimized at a given power consumption to meet the output spectrum requirements. The results show that a unity gain class AB amplifier with close loop bandwidth above 3.5MHz at 5Ω load resistance is required to meet the EDGE output spectrum mask requirements.
Keywords
3G mobile communication; microwave power amplifiers; modulation; EDGE output spectrum mask; EER transmission systems; class AB amplifier analysis; envelope elimination and restoration system; gain-bandwidth product; power consumption; resistance 5 ohm; supply modulation; EER; Power amplifier; polar transmitters; power control; supply modulation; wireless communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwaves, Communications, Antennas and Electronics Systems (COMCAS), 2011 IEEE International Conference on
Conference_Location
Tel Aviv
Print_ISBN
978-1-4577-1692-8
Type
conf
DOI
10.1109/COMCAS.2011.6105802
Filename
6105802
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